On Thu, 11 May, at 12:20:33PM, Sai Praneeth Prakhya wrote:
> From: Sai Praneeth <[email protected]>
> 
> EFI_PGT_DUMP, as the name suggests dumps efi page tables to dmesg during
> kernel boot. This feature is very useful while debugging page
> faults/null pointer dereferences to efi related addresses. Presently,
> this feature is limited only to x86_64, so let's extend it to other efi
> configurations like kexec kernel, efi=old_map and to x86_32 as well.
> This doesn't effect normal boot path because this config option should
> be used only for debug purposes.
> 
> Signed-off-by: Sai Praneeth Prakhya <[email protected]>
> Cc: Borislav Petkov <[email protected]>
> Cc: Ricardo Neri <[email protected]>
> Cc: Matt Fleming <[email protected]>
> Cc: Ard Biesheuvel <[email protected]>
> Cc: Ravi Shankar <[email protected]>
> 
> Changes since v1:
> 1. Call efi_dump_pagetable() only once from efi_enter_virtual_mode() -
> as suggested by Boris
> 
> ---
>  arch/x86/platform/efi/efi.c    | 3 ++-
>  arch/x86/platform/efi/efi_32.c | 9 ++++++++-
>  arch/x86/platform/efi/efi_64.c | 5 ++++-
>  3 files changed, 14 insertions(+), 3 deletions(-)

Thanks Sai, applied.

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